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Session 94 - Large-Scale Structure: Observations and Theory.
Oral session, Wednesday, January 17
Corte Real, Hilton
We use Tully--Fisher distances for a sample of late type, field spiral galaxies to test the Lauer and Postman (1994;LP) result suggestive of a bulk flow with respect to the Cosmic Microwave Background reference frame, of amplitude of +689 km s^-1 in the direction l=343^\circ, b=+52^\circ, and extending to very large spatial scales. A total of 268 galaxies, subdivided between two cones of one steradian each and pointed respectively toward the apex and antapex of the LP motion, are used. The peculiar velocities of the two data sets are inconsistent with a bulk flow of the amplitude claimed by LP.
Program listing for Wednesday